  <%= f.error_messages %>

  <p>
    <%= f.label :name %>
    <%= f.text_field :name %>
  </p>
  <p>
    <%= f.label :description %>
    <%= f.text_field :description %>
  </p>
  <p>
    <%= f.label :start_date %>
    <%= f.date_select :start_date %>
  </p>
  <p>
    <%= f.label :end_date %>
    <%= f.date_select :end_date %>
  </p>
  <p>
    <%= f.label :status %>
    <%= f.select(:status, Operation::OPERATION_STATUS.map {|c| [c[1], c[0]] } , :prompt => "Select status")%>
  </p>
  <p>
    <%= f.submit 'Create' %>
  </p>